Covering-wheel for drills



N0 Model.)

J.- CAMPBELL.

GOVERING WHEEL FOR DRILLS, 6w.

,938 Patented, Mar. 10,1891.

, provements in Plan which Nrrsn STATE FFlCEs )ATENT COVERING-WHEEL FORDRILLS, &,c.

SPECIFICATION forming part of Letters Application filed October 27,1890.

T 0 aZZ whom it may concern:

Beit known that I, JAMES CAMPBELL, a citizen of the United States,residing at Harrison, in the county of Hamilton and State of Ohio, haveinvented certain new-and useful Im- Covering-Vi heels for Drills, ters,&c.; and I do hereby declare the following to be a full, clear, andexact description of the invention, reference being had to the annexeddrawings, which-form part of this specification.

The first part of my present improvements comprises a novel constructionof coveringwheel to be attached to the rearend of drills, planters, andother similar agricultural implements, the details of said wheel. beinghereinafter more fully described, and then pointed out in the claims.

The second part of my improvements comprises a self-adjusting scraperthat can be held against the periphery of .a covering wheel with anydesired pressure, as hereinafter more fully described, and then pointedout in theclaims.

In the annexed drawings, Figure 1 is a'side elevation of a corn-seeddrill provided with the preferredconstruction of my covering wheel andscraper. Fig. 2 is an enlarged elevation of the rear portion of saidimplement. Fig. 3 is an enlarged horizontal section of thecovering-wheel of the same. Fig. 4 is a perspective vieiv' of thescraper detached from the implement. Fig. 5 is a vertical section .of amodification of said scraper. Fig. 6 is a section through thecent-ralportion of a modified form .of the covering-wheel.

Referring to Figs. 1 and 2, A represents the main frame of a grain drillor pla'nter or other similar agricultural implement to which acoveringwheel, can be advantageonslyapplied, and B B arevertically-adjustable hangers secured to the rear end of this frame.

0 is ahorizontal shaft journaled in these hangers and provided withseries of circumferential grooves c 0, shown in Fig. 3, grooves receivethe points of screws D D, tapped in the hubs e-c, ofdisks or wheels .l lE, the latter being furnished with inwardly-sloping rims on treads e c.Projecting rearwardly froin the hangers B B are extcn-' sions Z) 12,supporting a rod l from \vhichdopends a scraper consisting of anapproxithreaded end of this Patent No. 447,938, dated March 10, 1891.

Serial N5. 369,386. on model.)

side flanges H H, whose front edges areconcaved,-as seen in Fig. 4, toafford a snug fitagainst the peripheries of the wheels E E. The upperendof plate G has perforated ears 9 g, wherewith it is suspended, while ahole g, near the lower end of said plate, is traversed by the threadedportion of a rod I, whose frontend is coupled to the shaft 0.

'i is a nut engaged with the rear orscrewinterposed between said nut andthe scraper G, by which arrangement of devices said of thecoveringwhcels or disks with agraduated but yielding pressure.

from cachother, and has been effected said with the appropriate grooves.This ready but perfectlysecure adjustment of the covering-wheels enablesthem to be set according to an peculiar construcment of the graindropped therefrom. It is also apparent that-by '11 a greater or lesstension will be imparted to thespring 2", thereby of the scraper, andafter the 'side flanges-of the latter have been worn completely down theplate G will still be serviceable.

In the modification of the scraper seen in Fig. 5 the rod F has a collarJ secured to it by means of a set-screwy, and said collar has one end ofa spring K attached to it, the free end of this spring being in contactwith plate G. ny turning the collar J around on the shaft F the pressureof spring K can be regulated to suit the requirements of. the imple:mcni.

In the modification of the covcring-whcel seen in Fig. 6 the h ilie ofwheel E is prolonged inwardly crscs a tubularextension M the other wheelE. N are washersinten posed between the end of tube M and inner face ofwheel E after the desired adjustment has been made.

of the hube of rod, and a: is a springscraper can be held againsttheperipheries From the above description .it is apparent E may beadjusted.

red in place by men-- tion of the implement or the special requiresimply turning the nut to'form a sleeve L, that travniatelytriangular-shaped plate G, having graduating the pressure Finally,either form of my covering wheels or disks may be rigidly secured to thelshaft or'they may be made to revolve arou'ndithe latter. i

Ielaim as my invention- 1. The combination, in a. drill or planter orother similar implement, of the swinging scraper G, rod I, nut z,andsprin'g if, the front end of said rod being coupled to the shaft ofthe covering wheels'or disks, for the purpose described.

2. The scraper G, having side flanges H H, which flanges have concave,front edges, for

----the,purpose described. 7

The combination,.in an agricultural im :5 plement, of main frame A,hangers-B 1713' b, f'shaft 0-, wheels or'disks E E, adjustably securedalon g said shaft, rod F, scraper G, freely suspended from said rod, androd I, coupled to said shaft; 0 and having'at' its rear end a as

